ToDo list with functional note editor and subtasks?

Question

Time Management

You need a todo list that meets the requirements:

1. There are subtasks
   
2. There is a note editor for each task. Notes should editor richer than plain text, better with markdown, but you can just with formatting options.
   
3. Android client and web application. Native for linux (deb-based) will be a plus.
   

Desirable: tags and priorities.
I tried different things: TickTick, todoist, To-do list Microsoft, Taskade, nirvanahq.com, RememberTheMilk, notion.so and other little things. Everything is not quite right. Liked the most:

• notion.so - but it's very complex. Rather, there is a lot of functionality that distracts.
  
• RememberTheMilk - I use it now. In general, only very simple notes (only plain text) are not satisfied. Well, only an annual subscription, but that's okay.
  

Answer 1

notion.so is not "very complicated", but just not a tudulist
like that, and Trello and MS Project can be considered sheets there)
there is nothing better than RTM (Wunderlist went to some), although there is a mystery - why it is not being developed, the answer, most likely - and so everything is there, just enough
in the notes it is considered good practice to insert a link to the dock with details - GoogleDocs, Trello, notion co)))
and in the same sheet nothing but text is needed
i.e. You yourself found everything and use what you need

Answer 2

Usually people are looking for either the simplest, or the most convenient for themselves, or even then they switch to complex systems. Among the simple ones, I stay on TickTick, it is convenient for me.
In addition to RTM, it’s really unlikely that you will find anything.